A sample of pure tin metal is dissolved in nitric acid to produce 15.00 mL of solution containing Sn 2+ . When this tin solution is titrated, a total...

A sample of pure tin metal is dissolved in nitric acid to produce 15.00 mL of solution containing Sn2+. When this tin solution is titrated, a total of 42.0 mL of 0.105 mol/L KMnO4 is required to reach the equivalence point.

What is the concentration of the Sn2+ solution

﻿Find the concentration of the Sn2+(aq) in mol/L: (give your answer to 3decimal places